Assingnor of one



(No Model.)

T. B. MOORE.

TRIMMING ATTACHMENT FOR s-EWING MACHINES. No. 395,626. Patented Jan. 1,1889.

WITNESSES:

N. PETERS. Plwioifllwgrnpher. Washingwm 05C.

niTnn STATES Trice.

PATENT THOMAS E. MOORE, OF PHILADELPHIA, PENNSYLVANIA, ASSINGNOR OF ONE-HALF TO JOHN H. SCOTT, OF SAME PLACE.

TRHVHVIING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 395,626, dated January1, 1889.

Application filed August 26, 1886. Serial No. 211,903- (No model.)

To all whom) it may concern:

Be it known that I, THOMAS B. MOORE, a citizen of the United States,residing in the city and county of Philadelphia, State of 5Pennsylvania, have invented a newand useful Improvement in 'lrimmingAttachments to Sewing-Wlachines, which improvement is fully set forth inthe following specification and accompanying drawings, in which Figure 1represents an end view, partly broken away, of a sewing-machine with atrimming attachment embodying my invention. Fig. 2 represents a sideelevation thereof. Fig. 3 represents a top view of a detached portionand a horizontal section in line a: 50, Fig. 1., Figs. 4; and 5represent views of detached parts.

Similar letters of reference indicate correspondin g parts in theseveral figures.

My invention consists of an organized sewing-machine having atrimming-lmife of the form of a triangle with straight cuttingedges,which may be readily shar )ened.

It further consists of an, organized sewingmachine having atrimming-knife which operates upwardly through the presser -foot againstthe fabric.

It further consists of a latch for limiting the upward motion of thepresser-foot and rendering the same rigid during the upward cuttingaction of the trimmer or knife.

It also consists of means for removing the abutment, whereby thepresser-foot may be raised, as usual.

Referring to the drawings, A represents a sewing-machine, which,excepting the features of my invention applied thereto, is of wel1-knownform.

B represents the driving-shaft, to which is keyed or otherwise secured atoothed wheel, 0, and D represents a counter-shaft, which extendsparallel with the shaft .3 and carries a toothed wheel, E, to which themovement of the wheeli transmitted by means of an idlerwheel, F, thesaid idleravheel being suitably journaled in bearings secured to theframe of the machine and meshing with both wheels and E, as shown inFig. 1, whereby the shaft D rotates in the same direction as the shaft50 B, the several shafts being mounted on the frame of the machine.

The shaft D extends over the cloth-plate and has at the end adjacent tothe presser foot G a trimming-knife or cutter, H, which, when rotationis imparted to it, operates in a slot, H, in the heel portion of saidfoot, so that the cutting action thereof is in an upward direction.

J represents the vertical bar, which carries the presser-foot, the samebeing pressed downwardly by a spring and adapted to be raised by theeccentric lever K, as usual.

The arm or guide of the presser-foot bar J has an upward extension, J,and to the same is pivoted a depending latch or abutment, L, againstwhich said bar comes in contact when. the trimmer is in operation, thuslimiting the upward motion of the presser-foot and rendering the samerigid, the presser-foot, however, being enabled to rise and fall forpurposes of sewing, as well known.

Projecting laterally from the lever K is a pin or stud, M, so disposedthat when said lever is moved in order to raise the presserfoot said pinstrikes and moves the latch and deflects it from. the top of the bar J,whereby the latter may be raised by said lever, as usual insewing-machines.

It will be seen that when the machine is running the fabric or materialfed under the presser-foot is sewed or seamed, as well known, and thenadvanced to the knife H, by which it is cut or trimmed, as required: Asthe knife cuts upward into the fabric, the presser foot rises to therequired extent, and its bar J then abuts against the depending latch L,and is thereby rendered immovable, so that the presser-foot is heldrigid during the trimming or cutting operation of the knife, as thelatter presses the fabric upward against the presser-foot.

Then it is desired to raise the presser-foot, the lever K is movedupward, whereby its pin M strikes the latch L and moves it from the pathof the bar J, and the continued movement of the lever raises said barand the presser-foot, as usual. \Vhen the lever is moved in reversedirection, the presser-foot descends and the latch. returns to itsnormal position over the bar J, as an abutment there- I00 for, ashereinbefore described.

The knife is triangular, with straight out ting-edges, which may bereadily sharpened, there being the cutting or trimming action oftrimming action is rapid and effective.

Having thus described my invention, what I claim as new, and desire tosecure by Lettcrs Patent, is-

1. A sewing-machine having an upwardlycutting' trimming-knili'ejournaledabovc the cloth-plate, mechanism, substantially as described,connected therewith and to the driving-shaft for rotating said knife, apresserbar with foot, the latter having a slot in its heel portion inwhich the rotating knife 0perates, an operating-lever for saidpresser-bar, and a latch pivoted to an extension of the goose-neck abovethe resser-bar, whereby the presser-foot is held rigid during theprocess of trimming, said parts being combined substantially as and forthe purpose set forth.

2. A sewing-machine having a presser-bar, a latch pivoted to the head ofthe goose-neck and normally lying in the path of the presserfoot, andmeans,substantially as described, attached to said presserbar forremoving the said latch from the path of said prcsser-bar, substantiallyas described.

A sewii'ig-machine having a presscr-foot, a movable latch connected withthe frame of the machine over the presser-foot bar, and a projection onthe presser-bar lifting-lever adapted to deflect said latch from thepath of said bar, substantially as described.

4. A sewing-machine having a presser-foot, the latch L, pivoted to anupper extensionof the head of the goose-neck, the eccentric lever K,pivoted to the presser-foot bar, and the stud M, secured to the lever Kand operating on the latch L, all substantially as described.

THOMAS B. MOORE.

'itnesses:

JOHN A. WIEDERSHEIM, A. P. GRANT.

